Analysis, Detection Technology and Safety Risk Assessment of Food Contaminants—2nd Edition

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Analytical Methods".

Deadline for manuscript submissions: 20 May 2024 | Viewed by 1975

Special Issue Editors


E-Mail Website
Guest Editor
College of Food Science, South China Agricultural University, Guangzhou 510642, China
Interests: food analysis; immunoassay; antibody engineering; hapten design; biosensor; food safety
Special Issues, Collections and Topics in MDPI journals
College of Food Science, South China Agricultural University, Guangzhou 510642, China
Interests: immunoassay; antibody engineering; hapten design; biosensor; food safety; rapid assay
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Beijing Key Laboratory of Detection Technology for Animal-Derived Food, Beijing Laboratory for Food Quality and Safety, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
Interests: hapten design for chemical compound in food; production of recognition materials; immunoassay for food safety; food science and quality; antibiotic resistance; environmental drugs and toxins; veterinary medicine; zoonosis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Food contamination is one of the most significant issues affecting human health and food safety. Common food contaminants include antibiotics, mycotoxins, foodborne pathogens, metal ions, pesticide residues, allergens, etc., which can occur in foods as a result of, for instance, food production, processing, transport, storage. The consumption of contaminated food products could lead to foodborne diseases such as food poisoning, diarrhea, indigestion, neurotoxicity, and others, even at low doses. Based on the reports of the World Health Organization (WHO), annually, an estimated 600 million people are in poor health after eating contaminated food, with 42,000 dying as a result. For this reason, food safety risk assessment is becoming increasingly important.

A wide range of analytical techniques and methodologies for contaminant detection have emerged in endless forms, ranging from conventional immunoassays represented by enzyme-linked immunosorbent assays (ELISAs) and lateral flow immunochromatography assays (LFIAs), to biosensors with various transducer types, especially fluorescence, colorimetry, chemiluminescence, surface plasmon resonance, surface-enhanced Raman scattering optical aptasensors, electrochemical aptasensors, etc. New technologies are promoting the development of the detection of hazardous food contaminants and their application in food safety.

Thus, in order to ensure food quality and safety and protect human health from potential hazards, the main goal of this Special Issue is to collect manuscripts that enable the recent progress to be built upon and the novel knowledge about detection technology and safety risk assessment for food contaminants to be broadened in the field of food safety.

Dr. Xiangmei Li
Dr. Lin Luo
Prof. Dr. Zhanhui Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Foods is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • food contaminants
  • food analysis
  • food safety
  • risk assessment
  • biosensors
  • detection technology
  • novel signal transducers

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

14 pages, 3372 KiB  
Article
Ultrasensitive Ti3C2Tx@Pt-Based Immunochromatography with Catalytic Amplification and a Dual Signal for the Detection of Chloramphenicol in Animal-Derived Foods
by Mengfang Lin, Zhimin Gao, Zhenjie Qian, Youwen Deng, Yanhong Chen, Yu Wang and Xiangmei Li
Foods 2024, 13(9), 1416; https://doi.org/10.3390/foods13091416 - 5 May 2024
Viewed by 517
Abstract
Herein, a catalytic amplification enhanced dual-signal immunochromatographic assay (ICA) based on Pt nanoparticles (Pt NPs) modified with Ti3C2Tx MXene (Ti3C2Tx@Pt) was first developed for chloramphenicol (CAP) in animal-derived foods. Due to the large specific surface [...] Read more.
Herein, a catalytic amplification enhanced dual-signal immunochromatographic assay (ICA) based on Pt nanoparticles (Pt NPs) modified with Ti3C2Tx MXene (Ti3C2Tx@Pt) was first developed for chloramphenicol (CAP) in animal-derived foods. Due to the large specific surface area and abundant active sites of Ti3C2Tx@Pt, they can be loaded with hundreds of Pt NPs to enhance their catalytic activity, resulting in a significant increase in the detection sensitivity; the sensitivity was up to 50-fold more sensitive than the reported ICA for CAP. The LODs of the developed method for milk/chicken/fish were 0.01 μg/kg, the LOQs were 0.03 μg/kg and the recovery rates were 80.5–117.0%, 87.2–118.1% and 92.7–117.9%, with corresponding variations ranging from 3.1 to 9.6%, 6.0 to 12.7% and 6.0 to 13.6%, respectively. The linear range was 0.0125–1.0 μg/kg. The results of the LC-MS/MS confirmation test on 30 real samples had a good correlation with that of our established method (R2 > 0.98), indicating the practical reliability of the established method. The above results indicated that an ICA based on the Ti3C2Tx@Pt nanozyme has excellent potential as a food safety detection tool. Full article
Show Figures

Figure 1

12 pages, 3051 KiB  
Article
Development of a Magnetic Molecularly Imprinted Microsphere-Based Signal Amplified Semi-Homogeneous Method for Multidetection of Five Progestins in Milk
by Yan Su, Gelin Liu, Haozhe Hou, Yaojia Peng and Jianping Wang
Foods 2023, 12(15), 2818; https://doi.org/10.3390/foods12152818 - 25 Jul 2023
Viewed by 933
Abstract
The residues of progestins in milk are significant risk factors for teenage acne and may cause hormone-dependent cancers in consumers, so the determination of these residues in milk is very important. However, an immunoassay or immunoassay-like method capable of determining multiple progestins in [...] Read more.
The residues of progestins in milk are significant risk factors for teenage acne and may cause hormone-dependent cancers in consumers, so the determination of these residues in milk is very important. However, an immunoassay or immunoassay-like method capable of determining multiple progestins in milk has not been reported so far. The present study, for the first time, synthesized a type of magnetic molecularly imprinted microsphere that was capable of simultaneously recognizing five progestins. At the same time, an enzyme labeled conjugate was synthesized by coupling progesterone 3-(o-carboxymethyl)oxime with streptavidinated horseradish peroxidase. The above two reagents were used to develop a semi-homogeneous method for the simultaneous detection of the residues of the five progestins in milk. During the experiments, biotinylated horseradish peroxidase was used to amplify the signal, so the sensitivity to the five drugs (limits of detection 0.04–0.1 pg/mL) was increased 44–75-fold. In addition, the magnetic molecularly imprinted microsphere could be regenerated four times by using simple elution. Through general comparison of its detection spectrum, sensitivity, simplicity, and reusability, the present method exhibited better performance than the previous immunoassays for the detection of progestins, and so it could be used as a routine tool for the screening of progestins residues in milk. Full article
Show Figures

Figure 1

Back to TopTop